./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02a46d4d5c96ca48bb00b0ccf13d03f94a934872e425472af0469d5ca6049200 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:10:49,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:10:49,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:10:49,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:10:49,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:10:49,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:10:49,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:10:49,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:10:49,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:10:49,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:10:49,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:10:49,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:10:49,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:10:49,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:10:49,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:10:49,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:10:49,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:10:49,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:10:49,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:10:49,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:10:49,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:10:49,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:10:49,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:10:49,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:10:49,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:10:49,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:10:49,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:10:49,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:10:49,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:10:49,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:10:49,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:10:49,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:10:49,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:10:49,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:10:49,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:10:49,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:10:49,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:10:49,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:10:49,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:10:49,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:10:49,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:10:49,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 23:10:49,558 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:10:49,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:10:49,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:10:49,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:10:49,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:10:49,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:10:49,567 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:10:49,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:10:49,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:10:49,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:10:49,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:10:49,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:10:49,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:10:49,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:10:49,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:10:49,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:10:49,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:10:49,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:10:49,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:10:49,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:10:49,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:10:49,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:10:49,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:10:49,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:10:49,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:10:49,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:10:49,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:10:49,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:10:49,574 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:10:49,576 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:10:49,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:10:49,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:10:49,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02a46d4d5c96ca48bb00b0ccf13d03f94a934872e425472af0469d5ca6049200 [2021-11-02 23:10:49,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:10:49,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:10:49,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:10:49,932 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:10:49,933 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:10:49,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/eca-rers2012/Problem10_label56.c [2021-11-02 23:10:50,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/data/3670e420c/595c565881e94023857d1b853ab41eac/FLAGa5a462037 [2021-11-02 23:10:50,598 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:10:50,599 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/sv-benchmarks/c/eca-rers2012/Problem10_label56.c [2021-11-02 23:10:50,627 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/data/3670e420c/595c565881e94023857d1b853ab41eac/FLAGa5a462037 [2021-11-02 23:10:50,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/data/3670e420c/595c565881e94023857d1b853ab41eac [2021-11-02 23:10:50,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:10:50,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:10:50,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:10:50,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:10:50,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:10:50,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:10:50" (1/1) ... [2021-11-02 23:10:50,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a65aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:50, skipping insertion in model container [2021-11-02 23:10:50,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:10:50" (1/1) ... [2021-11-02 23:10:50,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:10:50,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:10:51,149 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/sv-benchmarks/c/eca-rers2012/Problem10_label56.c[2832,2845] [2021-11-02 23:10:51,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:10:51,363 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:10:51,389 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/sv-benchmarks/c/eca-rers2012/Problem10_label56.c[2832,2845] [2021-11-02 23:10:51,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:10:51,526 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:10:51,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51 WrapperNode [2021-11-02 23:10:51,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:10:51,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:10:51,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:10:51,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:10:51,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:10:51,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:10:51,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:10:51,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:10:51,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:10:51,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:10:51,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:10:51,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:10:51,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (1/1) ... [2021-11-02 23:10:51,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:10:51,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:10:51,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:10:51,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:10:51,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:10:51,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:10:51,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:10:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:10:53,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:10:53,389 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-02 23:10:53,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:10:53 BoogieIcfgContainer [2021-11-02 23:10:53,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:10:53,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:10:53,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:10:53,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:10:53,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:10:50" (1/3) ... [2021-11-02 23:10:53,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc281e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:10:53, skipping insertion in model container [2021-11-02 23:10:53,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:10:51" (2/3) ... [2021-11-02 23:10:53,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc281e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:10:53, skipping insertion in model container [2021-11-02 23:10:53,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:10:53" (3/3) ... [2021-11-02 23:10:53,402 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label56.c [2021-11-02 23:10:53,408 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:10:53,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 23:10:53,461 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:10:53,468 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 23:10:53,468 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 23:10:53,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:53,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-02 23:10:53,496 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:53,497 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:53,498 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:10:53,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -573341295, now seen corresponding path program 1 times [2021-11-02 23:10:53,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:53,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118836006] [2021-11-02 23:10:53,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:53,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:53,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:53,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:53,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118836006] [2021-11-02 23:10:53,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118836006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:53,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:53,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:10:53,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61418173] [2021-11-02 23:10:53,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:53,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:53,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:53,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:53,773 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:54,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:54,754 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2021-11-02 23:10:54,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:54,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-02 23:10:54,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:54,770 INFO L225 Difference]: With dead ends: 552 [2021-11-02 23:10:54,770 INFO L226 Difference]: Without dead ends: 282 [2021-11-02 23:10:54,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:54,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-02 23:10:54,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-11-02 23:10:54,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.3416370106761566) internal successors, (377), 281 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:54,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2021-11-02 23:10:54,835 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 23 [2021-11-02 23:10:54,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:54,835 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2021-11-02 23:10:54,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:54,836 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2021-11-02 23:10:54,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-02 23:10:54,840 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:54,840 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:54,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:10:54,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:10:54,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:54,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1923063836, now seen corresponding path program 1 times [2021-11-02 23:10:54,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:54,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793609460] [2021-11-02 23:10:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:54,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:55,047 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:55,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:55,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793609460] [2021-11-02 23:10:55,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793609460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:55,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:55,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:55,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779498838] [2021-11-02 23:10:55,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:55,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:55,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:55,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:55,052 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:55,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:55,621 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2021-11-02 23:10:55,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:55,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-02 23:10:55,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:55,625 INFO L225 Difference]: With dead ends: 701 [2021-11-02 23:10:55,630 INFO L226 Difference]: Without dead ends: 421 [2021-11-02 23:10:55,631 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:55,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-11-02 23:10:55,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-11-02 23:10:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.2523809523809524) internal successors, (526), 420 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 526 transitions. [2021-11-02 23:10:55,667 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 526 transitions. Word has length 89 [2021-11-02 23:10:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:55,668 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 526 transitions. [2021-11-02 23:10:55,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 526 transitions. [2021-11-02 23:10:55,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-02 23:10:55,671 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:55,672 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:55,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:10:55,672 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:10:55,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:55,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1000843565, now seen corresponding path program 1 times [2021-11-02 23:10:55,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:55,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473746958] [2021-11-02 23:10:55,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:55,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:55,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:55,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473746958] [2021-11-02 23:10:55,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473746958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:55,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:55,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:10:55,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774446283] [2021-11-02 23:10:55,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:55,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:55,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:55,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:55,895 INFO L87 Difference]: Start difference. First operand 421 states and 526 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:56,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:56,360 INFO L93 Difference]: Finished difference Result 979 states and 1209 transitions. [2021-11-02 23:10:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:56,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-02 23:10:56,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:56,364 INFO L225 Difference]: With dead ends: 979 [2021-11-02 23:10:56,364 INFO L226 Difference]: Without dead ends: 560 [2021-11-02 23:10:56,365 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:56,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-11-02 23:10:56,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-11-02 23:10:56,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2075134168157424) internal successors, (675), 559 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:56,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 675 transitions. [2021-11-02 23:10:56,397 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 675 transitions. Word has length 96 [2021-11-02 23:10:56,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:56,398 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 675 transitions. [2021-11-02 23:10:56,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:56,398 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 675 transitions. [2021-11-02 23:10:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-02 23:10:56,402 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:56,402 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:56,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:10:56,403 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:10:56,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:56,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2055444920, now seen corresponding path program 1 times [2021-11-02 23:10:56,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:56,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82964514] [2021-11-02 23:10:56,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:56,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:56,483 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:56,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:56,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82964514] [2021-11-02 23:10:56,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82964514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:56,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:56,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:56,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530828762] [2021-11-02 23:10:56,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:56,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:56,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:56,488 INFO L87 Difference]: Start difference. First operand 560 states and 675 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:57,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:57,029 INFO L93 Difference]: Finished difference Result 1118 states and 1414 transitions. [2021-11-02 23:10:57,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:57,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-02 23:10:57,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:57,038 INFO L225 Difference]: With dead ends: 1118 [2021-11-02 23:10:57,039 INFO L226 Difference]: Without dead ends: 699 [2021-11-02 23:10:57,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-11-02 23:10:57,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2021-11-02 23:10:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2163323782234956) internal successors, (849), 698 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 849 transitions. [2021-11-02 23:10:57,069 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 849 transitions. Word has length 98 [2021-11-02 23:10:57,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:57,070 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 849 transitions. [2021-11-02 23:10:57,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:57,070 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 849 transitions. [2021-11-02 23:10:57,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:10:57,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:57,073 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:57,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:10:57,074 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:10:57,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:57,075 INFO L85 PathProgramCache]: Analyzing trace with hash 964223200, now seen corresponding path program 1 times [2021-11-02 23:10:57,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:57,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84990224] [2021-11-02 23:10:57,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:57,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:57,167 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:57,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:57,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84990224] [2021-11-02 23:10:57,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84990224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:57,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:57,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:10:57,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185574729] [2021-11-02 23:10:57,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:57,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:57,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:57,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:57,171 INFO L87 Difference]: Start difference. First operand 699 states and 849 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:57,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:57,672 INFO L93 Difference]: Finished difference Result 1535 states and 1880 transitions. [2021-11-02 23:10:57,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:57,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:10:57,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:57,678 INFO L225 Difference]: With dead ends: 1535 [2021-11-02 23:10:57,678 INFO L226 Difference]: Without dead ends: 977 [2021-11-02 23:10:57,679 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:57,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-11-02 23:10:57,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-11-02 23:10:57,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.1495901639344261) internal successors, (1122), 976 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:57,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1122 transitions. [2021-11-02 23:10:57,707 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1122 transitions. Word has length 114 [2021-11-02 23:10:57,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:57,708 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1122 transitions. [2021-11-02 23:10:57,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:57,708 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1122 transitions. [2021-11-02 23:10:57,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-02 23:10:57,712 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:57,712 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:57,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 23:10:57,713 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:10:57,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:57,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1942408564, now seen corresponding path program 1 times [2021-11-02 23:10:57,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:57,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680314036] [2021-11-02 23:10:57,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:57,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:57,929 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:57,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:57,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680314036] [2021-11-02 23:10:57,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680314036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:57,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:57,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 23:10:57,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145260695] [2021-11-02 23:10:57,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 23:10:57,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:57,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 23:10:57,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:10:57,939 INFO L87 Difference]: Start difference. First operand 977 states and 1122 transitions. Second operand has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 6 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:58,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:58,545 INFO L93 Difference]: Finished difference Result 1868 states and 2153 transitions. [2021-11-02 23:10:58,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 23:10:58,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 6 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-02 23:10:58,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:58,552 INFO L225 Difference]: With dead ends: 1868 [2021-11-02 23:10:58,553 INFO L226 Difference]: Without dead ends: 977 [2021-11-02 23:10:58,554 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:10:58,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-11-02 23:10:58,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-11-02 23:10:58,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.1454918032786885) internal successors, (1118), 976 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:58,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1118 transitions. [2021-11-02 23:10:58,582 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1118 transitions. Word has length 171 [2021-11-02 23:10:58,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:58,584 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1118 transitions. [2021-11-02 23:10:58,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 6 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:58,584 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1118 transitions. [2021-11-02 23:10:58,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-02 23:10:58,587 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:58,588 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:58,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 23:10:58,589 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:10:58,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:58,589 INFO L85 PathProgramCache]: Analyzing trace with hash 955754418, now seen corresponding path program 1 times [2021-11-02 23:10:58,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:58,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907760474] [2021-11-02 23:10:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:58,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:58,781 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-02 23:10:58,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:58,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907760474] [2021-11-02 23:10:58,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907760474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:58,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:58,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:58,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167673810] [2021-11-02 23:10:58,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:58,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:58,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:58,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:58,786 INFO L87 Difference]: Start difference. First operand 977 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:59,296 INFO L93 Difference]: Finished difference Result 1952 states and 2280 transitions. [2021-11-02 23:10:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:59,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2021-11-02 23:10:59,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:59,303 INFO L225 Difference]: With dead ends: 1952 [2021-11-02 23:10:59,304 INFO L226 Difference]: Without dead ends: 1116 [2021-11-02 23:10:59,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:59,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-11-02 23:10:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-11-02 23:10:59,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.1408071748878923) internal successors, (1272), 1115 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:59,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1272 transitions. [2021-11-02 23:10:59,332 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1272 transitions. Word has length 207 [2021-11-02 23:10:59,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:59,333 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1272 transitions. [2021-11-02 23:10:59,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:59,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1272 transitions. [2021-11-02 23:10:59,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-02 23:10:59,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:59,337 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:59,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 23:10:59,337 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:10:59,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:59,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1660805995, now seen corresponding path program 1 times [2021-11-02 23:10:59,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:59,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173464519] [2021-11-02 23:10:59,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:59,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-02 23:10:59,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:59,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173464519] [2021-11-02 23:10:59,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173464519] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:10:59,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083686225] [2021-11-02 23:10:59,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:59,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:10:59,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:10:59,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:10:59,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 23:10:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:59,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:10:59,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-11-02 23:11:00,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083686225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:00,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:11:00,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-11-02 23:11:00,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932949696] [2021-11-02 23:11:00,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:11:00,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:00,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:11:00,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:11:00,473 INFO L87 Difference]: Start difference. First operand 1116 states and 1272 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:00,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:00,975 INFO L93 Difference]: Finished difference Result 1813 states and 2067 transitions. [2021-11-02 23:11:00,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:11:00,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2021-11-02 23:11:00,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:00,990 INFO L225 Difference]: With dead ends: 1813 [2021-11-02 23:11:00,991 INFO L226 Difference]: Without dead ends: 1811 [2021-11-02 23:11:00,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:11:00,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2021-11-02 23:11:01,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1255. [2021-11-02 23:11:01,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.164274322169059) internal successors, (1460), 1254 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1460 transitions. [2021-11-02 23:11:01,029 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1460 transitions. Word has length 217 [2021-11-02 23:11:01,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:01,030 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1460 transitions. [2021-11-02 23:11:01,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1460 transitions. [2021-11-02 23:11:01,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-02 23:11:01,035 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:01,036 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:01,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:01,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:11:01,251 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:11:01,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:01,251 INFO L85 PathProgramCache]: Analyzing trace with hash 666553426, now seen corresponding path program 1 times [2021-11-02 23:11:01,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:01,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779097999] [2021-11-02 23:11:01,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:01,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 26 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:01,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:01,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779097999] [2021-11-02 23:11:01,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779097999] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:01,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585791023] [2021-11-02 23:11:01,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:01,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:11:01,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:01,580 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:11:01,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 23:11:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:01,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 23:11:01,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:03,473 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 21 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:03,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585791023] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:03,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:11:03,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-11-02 23:11:03,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92647661] [2021-11-02 23:11:03,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 23:11:03,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:03,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 23:11:03,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:11:03,477 INFO L87 Difference]: Start difference. First operand 1255 states and 1460 transitions. Second operand has 8 states, 8 states have (on average 67.625) internal successors, (541), 7 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:05,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:05,683 INFO L93 Difference]: Finished difference Result 4470 states and 5261 transitions. [2021-11-02 23:11:05,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 23:11:05,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 67.625) internal successors, (541), 7 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2021-11-02 23:11:05,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:05,703 INFO L225 Difference]: With dead ends: 4470 [2021-11-02 23:11:05,703 INFO L226 Difference]: Without dead ends: 3340 [2021-11-02 23:11:05,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-02 23:11:05,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2021-11-02 23:11:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 2645. [2021-11-02 23:11:05,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.1611195158850227) internal successors, (3070), 2644 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:05,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3070 transitions. [2021-11-02 23:11:05,776 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3070 transitions. Word has length 271 [2021-11-02 23:11:05,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:05,777 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 3070 transitions. [2021-11-02 23:11:05,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.625) internal successors, (541), 7 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:05,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3070 transitions. [2021-11-02 23:11:05,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-11-02 23:11:05,784 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:05,784 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:05,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:06,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-02 23:11:06,012 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:11:06,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:06,012 INFO L85 PathProgramCache]: Analyzing trace with hash -546114320, now seen corresponding path program 1 times [2021-11-02 23:11:06,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:06,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656265578] [2021-11-02 23:11:06,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:06,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-11-02 23:11:06,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:06,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656265578] [2021-11-02 23:11:06,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656265578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:06,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:06,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:11:06,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967595770] [2021-11-02 23:11:06,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:11:06,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:06,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:11:06,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:11:06,232 INFO L87 Difference]: Start difference. First operand 2645 states and 3070 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:07,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:07,083 INFO L93 Difference]: Finished difference Result 5171 states and 6017 transitions. [2021-11-02 23:11:07,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:11:07,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 303 [2021-11-02 23:11:07,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:07,098 INFO L225 Difference]: With dead ends: 5171 [2021-11-02 23:11:07,098 INFO L226 Difference]: Without dead ends: 2645 [2021-11-02 23:11:07,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:11:07,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2021-11-02 23:11:07,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2645. [2021-11-02 23:11:07,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.103252647503782) internal successors, (2917), 2644 states have internal predecessors, (2917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:07,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 2917 transitions. [2021-11-02 23:11:07,162 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 2917 transitions. Word has length 303 [2021-11-02 23:11:07,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:07,163 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 2917 transitions. [2021-11-02 23:11:07,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:07,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 2917 transitions. [2021-11-02 23:11:07,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-02 23:11:07,184 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:07,185 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:07,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 23:11:07,186 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:11:07,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:07,186 INFO L85 PathProgramCache]: Analyzing trace with hash 960030519, now seen corresponding path program 1 times [2021-11-02 23:11:07,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:07,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764132540] [2021-11-02 23:11:07,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:07,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:07,358 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 219 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-02 23:11:07,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:07,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764132540] [2021-11-02 23:11:07,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764132540] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:07,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21908649] [2021-11-02 23:11:07,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:07,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:11:07,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:07,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:11:07,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 23:11:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:07,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 23:11:07,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 219 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-02 23:11:08,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21908649] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:08,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:11:08,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-02 23:11:08,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570203830] [2021-11-02 23:11:08,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:11:08,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:08,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:11:08,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:11:08,452 INFO L87 Difference]: Start difference. First operand 2645 states and 2917 transitions. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:09,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:09,336 INFO L93 Difference]: Finished difference Result 6956 states and 7722 transitions. [2021-11-02 23:11:09,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:11:09,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2021-11-02 23:11:09,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:09,358 INFO L225 Difference]: With dead ends: 6956 [2021-11-02 23:11:09,359 INFO L226 Difference]: Without dead ends: 4452 [2021-11-02 23:11:09,363 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:11:09,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4452 states. [2021-11-02 23:11:09,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4452 to 3896. [2021-11-02 23:11:09,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3895 states have (on average 1.0980744544287548) internal successors, (4277), 3895 states have internal predecessors, (4277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 4277 transitions. [2021-11-02 23:11:09,497 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 4277 transitions. Word has length 325 [2021-11-02 23:11:09,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:09,498 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 4277 transitions. [2021-11-02 23:11:09,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:09,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 4277 transitions. [2021-11-02 23:11:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-11-02 23:11:09,514 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:09,514 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:09,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:09,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-02 23:11:09,732 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:11:09,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:09,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1688260000, now seen corresponding path program 1 times [2021-11-02 23:11:09,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:09,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584392807] [2021-11-02 23:11:09,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:09,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 458 proven. 74 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-02 23:11:10,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:10,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584392807] [2021-11-02 23:11:10,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584392807] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:10,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896465935] [2021-11-02 23:11:10,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:10,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:11:10,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:10,076 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:11:10,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 23:11:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:10,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:11:10,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-02 23:11:12,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896465935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:12,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:11:12,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-11-02 23:11:12,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516432706] [2021-11-02 23:11:12,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:11:12,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:12,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:11:12,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:11:12,224 INFO L87 Difference]: Start difference. First operand 3896 states and 4277 transitions. Second operand has 4 states, 4 states have (on average 72.25) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:13,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:13,137 INFO L93 Difference]: Finished difference Result 9180 states and 10088 transitions. [2021-11-02 23:11:13,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:11:13,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 419 [2021-11-02 23:11:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:13,162 INFO L225 Difference]: With dead ends: 9180 [2021-11-02 23:11:13,162 INFO L226 Difference]: Without dead ends: 5425 [2021-11-02 23:11:13,167 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:11:13,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5425 states. [2021-11-02 23:11:13,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5425 to 4869. [2021-11-02 23:11:13,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4868 states have (on average 1.0967543138866065) internal successors, (5339), 4868 states have internal predecessors, (5339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:13,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 5339 transitions. [2021-11-02 23:11:13,306 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 5339 transitions. Word has length 419 [2021-11-02 23:11:13,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:13,307 INFO L470 AbstractCegarLoop]: Abstraction has 4869 states and 5339 transitions. [2021-11-02 23:11:13,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:13,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 5339 transitions. [2021-11-02 23:11:13,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-11-02 23:11:13,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:13,320 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:13,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:13,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-02 23:11:13,548 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:11:13,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:13,548 INFO L85 PathProgramCache]: Analyzing trace with hash -962134441, now seen corresponding path program 1 times [2021-11-02 23:11:13,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:13,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148015736] [2021-11-02 23:11:13,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:13,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:13,903 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-02 23:11:13,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:13,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148015736] [2021-11-02 23:11:13,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148015736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:13,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:13,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 23:11:13,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855001530] [2021-11-02 23:11:13,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 23:11:13,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:13,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 23:11:13,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:11:13,908 INFO L87 Difference]: Start difference. First operand 4869 states and 5339 transitions. Second operand has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:14,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:14,567 INFO L93 Difference]: Finished difference Result 9691 states and 10627 transitions. [2021-11-02 23:11:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 23:11:14,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 495 [2021-11-02 23:11:14,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:14,635 INFO L225 Difference]: With dead ends: 9691 [2021-11-02 23:11:14,635 INFO L226 Difference]: Without dead ends: 4869 [2021-11-02 23:11:14,640 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:11:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2021-11-02 23:11:14,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4869. [2021-11-02 23:11:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4868 states have (on average 1.092645850451931) internal successors, (5319), 4868 states have internal predecessors, (5319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 5319 transitions. [2021-11-02 23:11:14,778 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 5319 transitions. Word has length 495 [2021-11-02 23:11:14,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:14,779 INFO L470 AbstractCegarLoop]: Abstraction has 4869 states and 5319 transitions. [2021-11-02 23:11:14,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:14,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 5319 transitions. [2021-11-02 23:11:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-11-02 23:11:14,796 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:14,797 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:14,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-02 23:11:14,797 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:11:14,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:14,798 INFO L85 PathProgramCache]: Analyzing trace with hash 615073138, now seen corresponding path program 1 times [2021-11-02 23:11:14,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:14,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082863670] [2021-11-02 23:11:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:14,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 547 proven. 125 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-11-02 23:11:15,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:15,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082863670] [2021-11-02 23:11:15,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082863670] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:15,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946845377] [2021-11-02 23:11:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:15,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:11:15,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:15,292 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:11:15,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-02 23:11:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:16,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-02 23:11:16,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 563 proven. 109 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-11-02 23:11:18,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946845377] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:18,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:11:18,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-11-02 23:11:18,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198907804] [2021-11-02 23:11:18,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:11:18,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:18,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:11:18,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:11:18,222 INFO L87 Difference]: Start difference. First operand 4869 states and 5319 transitions. Second operand has 9 states, 9 states have (on average 89.66666666666667) internal successors, (807), 9 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:20,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:20,803 INFO L93 Difference]: Finished difference Result 10306 states and 11234 transitions. [2021-11-02 23:11:20,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:11:20,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 89.66666666666667) internal successors, (807), 9 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 533 [2021-11-02 23:11:20,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:20,805 INFO L225 Difference]: With dead ends: 10306 [2021-11-02 23:11:20,805 INFO L226 Difference]: Without dead ends: 0 [2021-11-02 23:11:20,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:11:20,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-02 23:11:20,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-02 23:11:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 23:11:20,814 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 533 [2021-11-02 23:11:20,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:20,815 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:11:20,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 89.66666666666667) internal successors, (807), 9 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:20,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-02 23:11:20,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-02 23:11:20,819 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:11:20,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:21,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-02 23:11:21,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-02 23:11:21,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:11:21,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:11:21,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:11:23,093 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-11-02 23:11:23,093 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-11-02 23:11:23,093 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-11-02 23:11:23,093 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-11-02 23:11:23,093 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-11-02 23:11:23,093 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-11-02 23:11:23,094 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,094 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,094 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,094 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,094 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,095 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,096 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-11-02 23:11:23,096 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-02 23:11:23,096 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-11-02 23:11:23,096 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-02 23:11:23,096 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-11-02 23:11:23,096 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-11-02 23:11:23,096 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-02 23:11:23,096 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-11-02 23:11:23,097 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-11-02 23:11:23,097 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-11-02 23:11:23,097 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-11-02 23:11:23,097 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-11-02 23:11:23,097 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-11-02 23:11:23,097 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,097 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,097 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,097 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-02 23:11:23,098 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-11-02 23:11:23,099 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-11-02 23:11:23,099 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-11-02 23:11:23,099 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-11-02 23:11:23,099 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-11-02 23:11:23,099 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,099 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,100 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,100 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,100 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,100 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,100 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-11-02 23:11:23,100 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-11-02 23:11:23,101 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-11-02 23:11:23,102 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,102 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,102 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,102 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,102 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,102 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,102 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-11-02 23:11:23,102 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-11-02 23:11:23,102 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-02 23:11:23,103 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-02 23:11:23,103 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-11-02 23:11:23,103 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-02 23:11:23,103 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-11-02 23:11:23,103 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-02 23:11:23,103 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-11-02 23:11:23,104 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-11-02 23:11:23,104 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-11-02 23:11:23,104 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,104 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,104 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,104 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,104 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,105 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-11-02 23:11:23,105 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-11-02 23:11:23,105 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-11-02 23:11:23,105 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-11-02 23:11:23,105 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-11-02 23:11:23,105 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-02 23:11:23,105 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-02 23:11:23,105 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-11-02 23:11:23,105 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,106 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,107 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-11-02 23:11:23,107 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-02 23:11:23,107 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-02 23:11:23,107 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-02 23:11:23,107 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-11-02 23:11:23,107 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-02 23:11:23,108 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-02 23:11:23,108 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse4 (<= ~a1~0 589865)) (.cse8 (<= 56 ~a1~0)) (.cse7 (= ~a19~0 8)) (.cse9 (= ~a10~0 0)) (.cse5 (<= ~a1~0 505232)) (.cse3 (<= ~a19~0 9)) (.cse6 (= ~a10~0 4)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 .cse1 .cse2 (<= ~a1~0 12)) (and .cse3 .cse4 (= ~a10~0 3) .cse1 .cse2) (and .cse3 .cse5 .cse6 .cse1 .cse2 (<= 9 ~a19~0)) (and .cse3 .cse0 .cse4 .cse1 .cse2) (and .cse0 .cse1 .cse2 .cse7) (and .cse0 .cse4 .cse8 .cse1 .cse2) (and (< 218 ~a1~0) .cse6 .cse1 .cse2 .cse7) (and .cse3 .cse5 .cse6 .cse8 .cse1 .cse2) (and .cse3 .cse9 .cse1 .cse2) (and .cse3 .cse1 (= ~a10~0 2) .cse2) (and .cse6 .cse1 .cse2 .cse7 (<= (+ 14285 ~a1~0) 0)) (and .cse9 .cse5 .cse1 .cse2) (and .cse3 (exists ((v_~a1~0_341 Int)) (and (< 218 v_~a1~0_341) (<= v_~a1~0_341 505232) (<= (+ 545163 ~a1~0) (div (* v_~a1~0_341 9) 10)))) .cse6 .cse1 .cse2))) [2021-11-02 23:11:23,108 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-11-02 23:11:23,109 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-11-02 23:11:23,109 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-11-02 23:11:23,109 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-11-02 23:11:23,109 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,109 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,110 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,110 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,110 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,110 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-11-02 23:11:23,110 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-11-02 23:11:23,111 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-11-02 23:11:23,111 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-02 23:11:23,111 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-02 23:11:23,111 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-02 23:11:23,111 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-11-02 23:11:23,111 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-11-02 23:11:23,112 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-11-02 23:11:23,112 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-11-02 23:11:23,112 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-11-02 23:11:23,112 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-11-02 23:11:23,112 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-11-02 23:11:23,113 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-11-02 23:11:23,113 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-02 23:11:23,113 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,113 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,113 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,114 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,114 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,114 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-11-02 23:11:23,114 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-02 23:11:23,114 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-02 23:11:23,114 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-02 23:11:23,115 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-11-02 23:11:23,115 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-11-02 23:11:23,115 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-11-02 23:11:23,115 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-11-02 23:11:23,115 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-11-02 23:11:23,116 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,116 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,116 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,116 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,116 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-02 23:11:23,116 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,117 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-11-02 23:11:23,117 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-11-02 23:11:23,117 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-11-02 23:11:23,117 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-11-02 23:11:23,117 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-02 23:11:23,118 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-02 23:11:23,118 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-11-02 23:11:23,118 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-11-02 23:11:23,118 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-11-02 23:11:23,118 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-11-02 23:11:23,118 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-11-02 23:11:23,119 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-11-02 23:11:23,119 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse4 (<= ~a1~0 589865)) (.cse8 (<= 56 ~a1~0)) (.cse7 (= ~a19~0 8)) (.cse9 (= ~a10~0 0)) (.cse5 (<= ~a1~0 505232)) (.cse3 (<= ~a19~0 9)) (.cse6 (= ~a10~0 4)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 .cse1 .cse2 (<= ~a1~0 12)) (and .cse3 .cse4 (= ~a10~0 3) .cse1 .cse2) (and .cse3 .cse5 .cse6 .cse1 .cse2 (<= 9 ~a19~0)) (and .cse3 .cse0 .cse4 .cse1 .cse2) (and .cse0 .cse1 .cse2 .cse7) (and .cse0 .cse4 .cse8 .cse1 .cse2) (and (< 218 ~a1~0) .cse6 .cse1 .cse2 .cse7) (and .cse3 .cse5 .cse6 .cse8 .cse1 .cse2) (and .cse3 .cse9 .cse1 .cse2) (and .cse3 .cse1 (= ~a10~0 2) .cse2) (and .cse6 .cse1 .cse2 .cse7 (<= (+ 14285 ~a1~0) 0)) (and .cse9 .cse5 .cse1 .cse2) (and .cse3 (exists ((v_~a1~0_341 Int)) (and (< 218 v_~a1~0_341) (<= v_~a1~0_341 505232) (<= (+ 545163 ~a1~0) (div (* v_~a1~0_341 9) 10)))) .cse6 .cse1 .cse2))) [2021-11-02 23:11:23,119 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-11-02 23:11:23,119 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,120 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,120 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,120 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,120 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-02 23:11:23,120 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,121 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,121 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-11-02 23:11:23,121 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-11-02 23:11:23,121 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-11-02 23:11:23,121 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-02 23:11:23,121 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-02 23:11:23,122 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-11-02 23:11:23,122 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-02 23:11:23,122 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-11-02 23:11:23,122 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-02 23:11:23,122 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-02 23:11:23,123 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2021-11-02 23:11:23,123 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-11-02 23:11:23,123 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-11-02 23:11:23,123 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-11-02 23:11:23,123 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-11-02 23:11:23,124 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,124 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,124 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,124 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,124 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,125 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-11-02 23:11:23,125 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-11-02 23:11:23,125 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-11-02 23:11:23,125 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-11-02 23:11:23,125 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-02 23:11:23,126 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-02 23:11:23,126 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-11-02 23:11:23,126 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-11-02 23:11:23,126 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-02 23:11:23,126 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-02 23:11:23,130 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:23,132 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:11:23,143 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,144 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,144 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,161 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,161 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:11:23 BoogieIcfgContainer [2021-11-02 23:11:23,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:11:23,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:11:23,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:11:23,167 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:11:23,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:10:53" (3/4) ... [2021-11-02 23:11:23,171 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-02 23:11:23,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-02 23:11:23,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-02 23:11:23,200 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 23:11:23,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 23:11:23,234 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((a10 == 1 && 14 == a4) && a12 == 0) && a1 <= 12) || ((((a19 <= 9 && a1 <= 589865) && a10 == 3) && 14 == a4) && a12 == 0)) || (((((a19 <= 9 && a1 <= 505232) && a10 == 4) && 14 == a4) && a12 == 0) && 9 <= a19)) || ((((a19 <= 9 && a10 == 1) && a1 <= 589865) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 14 == a4) && a12 == 0) && a19 == 8)) || ((((a10 == 1 && a1 <= 589865) && 56 <= a1) && 14 == a4) && a12 == 0)) || ((((218 < a1 && a10 == 4) && 14 == a4) && a12 == 0) && a19 == 8)) || (((((a19 <= 9 && a1 <= 505232) && a10 == 4) && 56 <= a1) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && a10 == 0) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || ((((a10 == 4 && 14 == a4) && a12 == 0) && a19 == 8) && 14285 + a1 <= 0)) || (((a10 == 0 && a1 <= 505232) && 14 == a4) && a12 == 0)) || ((((a19 <= 9 && (\exists v_~a1~0_341 : int :: (218 < v_~a1~0_341 && v_~a1~0_341 <= 505232) && 545163 + a1 <= v_~a1~0_341 * 9 / 10)) && a10 == 4) && 14 == a4) && a12 == 0) [2021-11-02 23:11:23,241 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((a10 == 1 && 14 == a4) && a12 == 0) && a1 <= 12) || ((((a19 <= 9 && a1 <= 589865) && a10 == 3) && 14 == a4) && a12 == 0)) || (((((a19 <= 9 && a1 <= 505232) && a10 == 4) && 14 == a4) && a12 == 0) && 9 <= a19)) || ((((a19 <= 9 && a10 == 1) && a1 <= 589865) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 14 == a4) && a12 == 0) && a19 == 8)) || ((((a10 == 1 && a1 <= 589865) && 56 <= a1) && 14 == a4) && a12 == 0)) || ((((218 < a1 && a10 == 4) && 14 == a4) && a12 == 0) && a19 == 8)) || (((((a19 <= 9 && a1 <= 505232) && a10 == 4) && 56 <= a1) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && a10 == 0) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || ((((a10 == 4 && 14 == a4) && a12 == 0) && a19 == 8) && 14285 + a1 <= 0)) || (((a10 == 0 && a1 <= 505232) && 14 == a4) && a12 == 0)) || ((((a19 <= 9 && (\exists v_~a1~0_341 : int :: (218 < v_~a1~0_341 && v_~a1~0_341 <= 505232) && 545163 + a1 <= v_~a1~0_341 * 9 / 10)) && a10 == 4) && 14 == a4) && a12 == 0) [2021-11-02 23:11:23,379 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 23:11:23,379 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:11:23,381 INFO L168 Benchmark]: Toolchain (without parser) took 32523.71 ms. Allocated memory was 88.1 MB in the beginning and 283.1 MB in the end (delta: 195.0 MB). Free memory was 50.9 MB in the beginning and 137.0 MB in the end (delta: -86.1 MB). Peak memory consumption was 107.7 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:23,382 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory was 58.5 MB in the beginning and 58.5 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:11:23,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.30 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.7 MB in the beginning and 65.0 MB in the end (delta: -14.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:23,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.33 ms. Allocated memory is still 107.0 MB. Free memory was 65.0 MB in the beginning and 57.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:23,384 INFO L168 Benchmark]: Boogie Preprocessor took 123.15 ms. Allocated memory is still 107.0 MB. Free memory was 57.4 MB in the beginning and 52.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:23,384 INFO L168 Benchmark]: RCFGBuilder took 1580.29 ms. Allocated memory is still 107.0 MB. Free memory was 52.2 MB in the beginning and 67.1 MB in the end (delta: -14.9 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:23,385 INFO L168 Benchmark]: TraceAbstraction took 29772.31 ms. Allocated memory was 107.0 MB in the beginning and 283.1 MB in the end (delta: 176.2 MB). Free memory was 66.4 MB in the beginning and 151.7 MB in the end (delta: -85.2 MB). Peak memory consumption was 182.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:23,385 INFO L168 Benchmark]: Witness Printer took 212.84 ms. Allocated memory is still 283.1 MB. Free memory was 151.7 MB in the beginning and 137.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:23,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory was 58.5 MB in the beginning and 58.5 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 669.30 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.7 MB in the beginning and 65.0 MB in the end (delta: -14.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 158.33 ms. Allocated memory is still 107.0 MB. Free memory was 65.0 MB in the beginning and 57.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 123.15 ms. Allocated memory is still 107.0 MB. Free memory was 57.4 MB in the beginning and 52.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1580.29 ms. Allocated memory is still 107.0 MB. Free memory was 52.2 MB in the beginning and 67.1 MB in the end (delta: -14.9 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29772.31 ms. Allocated memory was 107.0 MB in the beginning and 283.1 MB in the end (delta: 176.2 MB). Free memory was 66.4 MB in the beginning and 151.7 MB in the end (delta: -85.2 MB). Peak memory consumption was 182.4 MB. Max. memory is 16.1 GB. * Witness Printer took 212.84 ms. Allocated memory is still 283.1 MB. Free memory was 151.7 MB in the beginning and 137.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 83]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.6s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1121 SDtfs, 2078 SDslu, 156 SDs, 0 SdLazy, 9648 SolverSat, 1246 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1819 GetRequests, 1769 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4869occurred in iteration=12, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 2363 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 99 NumberOfFragments, 433 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5174 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 3178 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 5126 NumberOfCodeBlocks, 5126 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 5107 ConstructedInterpolants, 42 QuantifiedInterpolants, 27669 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2493 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 4567/5238 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant [2021-11-02 23:11:23,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] Derived loop invariant: ((((((((((((((a10 == 1 && 14 == a4) && a12 == 0) && a1 <= 12) || ((((a19 <= 9 && a1 <= 589865) && a10 == 3) && 14 == a4) && a12 == 0)) || (((((a19 <= 9 && a1 <= 505232) && a10 == 4) && 14 == a4) && a12 == 0) && 9 <= a19)) || ((((a19 <= 9 && a10 == 1) && a1 <= 589865) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 14 == a4) && a12 == 0) && a19 == 8)) || ((((a10 == 1 && a1 <= 589865) && 56 <= a1) && 14 == a4) && a12 == 0)) || ((((218 < a1 && a10 == 4) && 14 == a4) && a12 == 0) && a19 == 8)) || (((((a19 <= 9 && a1 <= 505232) && a10 == 4) && 56 <= a1) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && a10 == 0) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || ((((a10 == 4 && 14 == a4) && a12 == 0) && a19 == 8) && 14285 + a1 <= 0)) || (((a10 == 0 && a1 <= 505232) && 14 == a4) && a12 == 0)) || ((((a19 <= 9 && (\exists v_~a1~0_341 : int :: (218 < v_~a1~0_341 && v_~a1~0_341 <= 505232) && 545163 + a1 <= v_~a1~0_341 * 9 / 10)) && a10 == 4) && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant [2021-11-02 23:11:23,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,427 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,428 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,429 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,430 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] [2021-11-02 23:11:23,431 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_341,QUANTIFIED] Derived loop invariant: ((((((((((((((a10 == 1 && 14 == a4) && a12 == 0) && a1 <= 12) || ((((a19 <= 9 && a1 <= 589865) && a10 == 3) && 14 == a4) && a12 == 0)) || (((((a19 <= 9 && a1 <= 505232) && a10 == 4) && 14 == a4) && a12 == 0) && 9 <= a19)) || ((((a19 <= 9 && a10 == 1) && a1 <= 589865) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 14 == a4) && a12 == 0) && a19 == 8)) || ((((a10 == 1 && a1 <= 589865) && 56 <= a1) && 14 == a4) && a12 == 0)) || ((((218 < a1 && a10 == 4) && 14 == a4) && a12 == 0) && a19 == 8)) || (((((a19 <= 9 && a1 <= 505232) && a10 == 4) && 56 <= a1) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && a10 == 0) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || ((((a10 == 4 && 14 == a4) && a12 == 0) && a19 == 8) && 14285 + a1 <= 0)) || (((a10 == 0 && a1 <= 505232) && 14 == a4) && a12 == 0)) || ((((a19 <= 9 && (\exists v_~a1~0_341 : int :: (218 < v_~a1~0_341 && v_~a1~0_341 <= 505232) && 545163 + a1 <= v_~a1~0_341 * 9 / 10)) && a10 == 4) && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-02 23:11:23,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a383f-f67b-40af-b874-a51f5c45d8da/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE